/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.streaming.util;

import org.apache.flink.runtime.jobgraph.OperatorID;
import org.apache.flink.streaming.runtime.streamrecord.LatencyMarker;

/**
 * The {@link LatencyStats} objects are used to track and report on the behavior of latencies across measurements.
 */
public class LatencyStats {
	private final int historySize;
	private final int subtaskIndex;
	private final OperatorID operatorId;
	private final Granularity granularity;

	public LatencyStats(
			int historySize,
			int subtaskIndex,
			OperatorID operatorID,
			Granularity granularity) {
		this.historySize = historySize;
		this.subtaskIndex = subtaskIndex;
		this.operatorId = operatorID;
		this.granularity = granularity;
	}

	public void reportLatency(LatencyMarker marker) {
	}

	/**
	 * Granularity for latency metrics.
	 */
	public enum Granularity {
		SINGLE {
		},
		OPERATOR {
		},
		SUBTASK {
		};

	}
}
